ISCA Archive Interspeech 2009
ISCA Archive Interspeech 2009

Voice morphing based on interpolation of vocal tract area functions using AR-HMM analysis of speech

Yoshiki Nambu, Masahiko Mikawa, Kazuyo Tanaka

This paper presents a new voice morphing method which focuses on the continuity of phonological identity overall inter- and extrapolated regions. Main features of the method are 1) to separate the characteristic of vocal tract area resonances from that of vocal cord waves by using AR-HMM analysis of speech, 2) interpolation in a log vocal tract area function domain and 3) independent morphing for the vocal tract resonances and vocal cord wave characteristics. By the morphing system constructed on a statistical conversion method, the continuity of formants and perceptual difference between a conventional method and the proposed method are confirmed.


doi: 10.21437/Interspeech.2009-494

Cite as: Nambu, Y., Mikawa, M., Tanaka, K. (2009) Voice morphing based on interpolation of vocal tract area functions using AR-HMM analysis of speech. Proc. Interspeech 2009, 2639-2642, doi: 10.21437/Interspeech.2009-494

@inproceedings{nambu09_interspeech,
  author={Yoshiki Nambu and Masahiko Mikawa and Kazuyo Tanaka},
  title={{Voice morphing based on interpolation of vocal tract area functions using AR-HMM analysis of speech}},
  year=2009,
  booktitle={Proc. Interspeech 2009},
  pages={2639--2642},
  doi={10.21437/Interspeech.2009-494}
}